Pipe-union



L. HAGHENBRG.

PIPE UNlON.

APPLICATION man MAR.17.|920.

l 1,396,196, Patented Nov. 8, 1921.

UNITED STATES. PATENT ol-Flea PIPE-UN ION.

1,396,196. specificationofmeersrafent. Patented N0v.s,19e1.

' Application med March 17, 1920. serial No. 366,681. i

To all lwhom t may concern: at 7, and the two parts pinned together, as

Be it known that I, LoUIs HACHENBERG, for instance, by screws 8. a citizen of the United States, yand resident The/periphery of the base 9 of the valve of the borough of Manhattan, in the'city 10 is seated in an inner annular groove 1l 60 and State of New York,r1 have invented a in the collar. This valve 10 is provided new and useful Improvement,l in Pipe'- with a projection 12 which is fitted to enter `Unions, of which the following is a specithe bore of the flange member 3 of the pipe i'ication. l section 1 to guide the valve to its seat 13,

In unions as commonly constructed, the surrounding the said bore. 65 lflow of the fluid through the pipe line musty The flange members 3 and 4 are threaded be shut off at a distant point before two in the same direction so that as the collar adjacent pipe sections Acan be" uncoupled. is turned, it will be screwed along the flange This results in considerable annoyance and member 3 in one direction or the other as expense. the collar is screwed on to or off from the. 70 The object of my invention isV to provide flange member 4.

means for automatically closing one of two -As the collar is screwed oil from the adjacent pipe sections as:V the two sections flange member 4to uncouple the adjacent J are being uncoupled and for opening the pipe. sections, the valve will be moved into lsaid pipe-section as the two sections are be position to gradually close the pipe section 75 in coupled. 1. As the collar is turned in the other y invention preferably includes a valve` direction to screw on to the flange member carrial. by the collar which `is screw- 4 of the pipe( section'2, the valve 10fwill threa ed to both pipe sectionsso that the be gradually opened... valve will gradually close or open vthe one In the form shown in Figs. l to 4 in- 80 25.0f the pipe sections as thel collar is unelusive, the inner part 5 of the collar is screwed from or screwed on to the other screwed on to the flange member 3 and pipe section. f the outer part on to the flange member 4, A practical embodiment of my invention while in the form illustrated in Fig. 5, the is represented in the accompanying drawinner member 14 of the collar is screwed 65 y 1n ,in which, on to the flange member 4 and the outer igure 1 represents one embodiment of member l5 of the collar is screwed on" to my invention-in end elevation. thelange member 3. vThis is a reversal F 1g. 2 represents a longitudinal section of the arrangement shown in Figs. 1 to 4 taken in the plane of the line IILII ofl inclusive. In the form shown in Fig. 5, 90 Fig. 1, the two adjacent pipe sections being the two members are secured together after shown coupled and the Ivalve open. the Valve has been placed in its position by Fig. 3 represents a transverse section the screw or screws 8.

taken in the plane of the line III-III of To facilitate the assembly and disassemt Fi 2. bly of the'two parts of the collar in the 95 v40 ig. 4 represents a view vsimilar to Fig. form shownm Figs. 1 to 4 inclusive, the r 2, the adjacent pipe sections being shown outer part 6 may be shaped like a nut to uncoupled. receive an ordinary wrench, and the inner F'g. 5 represents a modified form of part 5 maybe provided with lugs 16 to er1- union cin longitudinal central section. gage a spanner wrench. For the same rea- 109 "Ihe two adjacent pipe -sections of a pipe son, inthe form shown in Fig. 5, the outer ,line are represented by land 2. The pipe vpart 15 maybe shaped like a n ut and they section 1 is provided with a flange member llimer part 14 may be provided wlth lugs 17 3 eXteriorly screw-threaded, and the pipe From the above description, it will be member2 is provided with a flange memseen that each union carries its own valve 105 g ber 4, also exteriorly screw-threaded. for shutting olf and openin the flow of the In the form shown in Figs. 1 to 4 inclufluid through the pipeline, thereby elminatsive, the collar which is screw-threaded on ing the necessity of closing the pipe line at to the flange members 3 and 4 of the two a ldistant point. i f adjacent pipe sections is shown as compris- It is obvious that var1ous changes may -110 .55 ing two parts 5 and 6, the part 6 being be made in the construction, form and arl screw-threaded on to the part 5 as shown rangement of the several ,parts withoutl defrom the spirit and scope of my partin g hence I do not wish to ylimit myinventlon yself to the particular embodiments herein I shown and described, but

including a collarI having a screw-threadedy` What I claim is 1. A union for two adjacent pipe sections including a collar havinga screwthreaded j engagement with both pipe sections,- and a valve movable with the collar to automatically close one of the pipe sections as the collar is unsci'ewed from the other pipe section to uncouple the two pipe sections.

2. A union fortwo'adjacent pipe sectionsA collar is screwed on to the other pipe section.

.4. A union for two adjacent pipe sections engagement/with both pipe sections, and a valve movable with the collar to gradually and automatically open one of the pipe sections as the collar is screwed o n to the other pipe section. y

A union for two adjacent pipe sections including a collar having a screw-threaded engagement .with both plpe sections7 and a valve movable with the collar to automati- 'cally close or open one of the pipe sections as the collar is unscrewed from or screw d on to the other pipe section.

6. A union for two adjacent pipe sections including a collar having a screw-threaded engagementI with both pipe sections, and a valve movable with the collar to gradually and automaticallyclose or openone of the pipe sections as the collar isunscrewed from or screwed on to the other pipe section.

7. A union for two adjacent pipe sections including. a collar having a screw-threaded engagement vwith both pipe sections, and a valve movable with the collar to automatically close one of the pipe sections as the collar is unscrewed from the other pipe section touncouple the two pipe sections, said valve being provided withv a projection which is fitted to enter .the'bore of the pipe section being closed. j l

, 8.J A union'for two adjacent pipe sections including ya collar havin a screw-threaded engagement with both pipe sections, one of said pipe sections having a valve seat surrounding its bore, and a valve movable with the collar to automatically close onto said seat as -the collar is unscrewed from the other pipe section to uncouple the two pipe sections,'said valve being provided with a projection which is fitted to enter the bore of the pipe section being closed before the 'valve is seated.- n i In testimony, that I claim the foregoing as my invention, Ihave signed my namethis n 15th day of March, 1920. j

Louis HACHE'NBERG. 

